Patents by Inventor Deborah Pao-Tung Kwo

Deborah Pao-Tung Kwo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Producing bragg gratings in optical waveguides
    Patent number: 11269199
    Abstract: We describe methods of producing gratings such as Bragg gratings with optical waveguides. Described are the writing and erasing of gratings within SiON waveguides by forming standing waves. Methods, systems, instruments, and devices are described that provide improved transmission of light through such waveguides.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: March 8, 2022
    Assignee: Pacific Biosciences of California, Inc.
    Inventors: Mark McDonald, Aaron Rulison, Paul Lundquist, Tsuei-Lian Wang, Deborah Pao-Tung Kwo, Shang Wang
  • PRODUCING BRAGG GRATINGS IN OPTICAL WAVEGUIDES
    Publication number: 20190317340
    Abstract: We describe methods of producing gratings such as Bragg gratings with optical waveguides. Described are the writing and erasing of gratings within SiON waveguides by forming standing waves. Methods, systems, instruments, and devices are described that provide improved transmission of light through such waveguides.
    Type: Application
    Filed: April 11, 2019
    Publication date: October 17, 2019
    Inventors: Mark McDonald, Aaron Rulison, Paul Lundquist, Tsuei-Lian Wang, Deborah Pao-Tung Kwo, Shang Wang
  • Waveguide transmission
    Patent number: 10302972
    Abstract: We have seen that some waveguides exhibit variable and increasing back reflection of single wavelength illumination over time, limiting their effectiveness and reliability. We have developed approaches to improve the transmission of these waveguides. We have found that by modulating the illumination wavelength over a small wavelength range we can reduce or eliminate this back reflection from the waveguide. In addition, we describe the writing and erasing of gratings within SiON waveguides by forming standing waves. Methods, systems, instruments, and devices are described that provide improved transmission of light through such waveguides.
    Type: Grant
    Filed: January 21, 2016
    Date of Patent: May 28, 2019
    Assignee: Pacific Biosciences of California, Inc.
    Inventors: Mark McDonald, Aaron Rulison, Paul Lundquist, Tsuei-Lian Wang, Deborah Pao-Tung Kwo, Shang Wang
  • WAVEGUIDE TRANSMISSION
    Publication number: 20160216538
    Abstract: We have seen that some waveguides exhibit variable and increasing back reflection of single wavelength illumination over time, limiting their effectiveness and reliability. We have developed approaches to improve the transmission of these waveguides. We have found that by modulating the illumination wavelength over a small wavelength range we can reduce or eliminate this back reflection from the waveguide. In addition, we describe the writing and erasing of gratings within SiON waveguides by forming standing waves. Methods, systems, instruments, and devices are described that provide improved transmission of light through such waveguides.
    Type: Application
    Filed: January 21, 2016
    Publication date: July 28, 2016
    Inventors: Mark McDonald, Aaron Rulison, Paul Lundquist, Tsuei-Lian Wang, Deborah Pao-Tung Kwo, Shang Wang